refactor(core): remove dead AISDK hook domain

packages/core/src/plugin/hooks.ts

@@ -1,6 +1,5 @@
 export * as PluginHooks from "./hooks"
 
-import type { AISDKHooks } from "@opencode-ai/plugin/effect/aisdk"
 import type { SessionHooks } from "@opencode-ai/plugin/effect/session"
 import type { ShellHooks } from "@opencode-ai/plugin/effect/shell"
 import type { ToolHooks } from "@opencode-ai/plugin/effect/tool"
@@ -9,7 +8,6 @@ import { makeLocationNode } from "@opencode-ai/util/effect/app-node"
 import { State } from "../state"
 
 export interface Domains {
-  readonly aisdk: AISDKHooks
   readonly session: SessionHooks
   readonly shell: ShellHooks
   readonly tool: ToolHooks